baber/WOPTO huggingface dataset:
Patent KR-20020024554-A (KR)
Inventor: ISHII AKINORI
IPC: H01L21/302
Filed: 2001-09-24
Abstract: PURPOSE: An apparatus for processing a substrate is provided to guarantee the removal of a natural oxide layer of a wafer, by properly controlling the analysis of NF3 gas at a gas introducing pipe while plasma damage is prevented. CONSTITUTION: The substrate processing apparatus includes a processing chamber and a gas supply line. The natural oxide film removing gas including the first gas activated by the second gas activated by a plasma discharge is supplied to the processing chamber through the gas supply line to remove a natural oxide film on the wafer. The first gas and the second gas are supplied to the gas supply line along the first direction and the second direction and an angle between the first and second direction ranges from about 90 to 180.
Patent KR-20030028660-A (KR)
Title: Method and System for Message exchange of Mobile Station to Mobile Station
Inventor: LEE SANG YEOP
IPC: H04W8/08
Filed: 2001-09-25
Abstract: PURPOSE: A system and method for exchanging a message between terminals are provided to effectively transmit and receive a temporary message by transmitting and receiving the temporary message, which is instantly transmitted and received for user's awareness of corresponding information, without opening a speech path between terminals. CONSTITUTION: Tracing of location of a receiving terminal is completed(S41). A transmitting terminal transmits a corresponding temporary message to a receiving mobile switching center at the traced location(S42). Upon receiving the temporary message, the receiving mobile switching center transmits the temporary message to a corresponding receiving terminal. The receiving terminal performs a response function on the short message(S43) and determines whether to transmit a response message to the transmitting terminal(S44). The receiving terminal transmits the response message to the receiving mobile switching center(S45) or not.
Patent KR-20020029604-A (KR)
Inventor: LEE MI YOUNG
IPC: C12N9/24
Filed: 2001-09-26
Abstract: PURPOSE: An exo-beta-1,4-glucanase isolated from Lumbricus rubellus is provided, which exoglucanase can effectively decompose a fiber of the paper waste, so that the fibrous wastes can be effectively reused. CONSTITUTION: The exo-beta-1,4-glucanase is isolated from Lumbricus rubellus by precipitating Lumbricus rubellus with 0 to 50% of ammonium sulfate to prepare precipitate; and sequentially subjecting the precipitate to DEAE-Sephacel ion exchange chromatography, CM-cellulose chromatography and Sephacryl S-100 gel filtration chromatography, in which the molecular weight of the exoglucanase is 71.5 kDa, the amino acid sequence of the amino terminal of the exoglucanase is Tyr-Asp-Trp-Asp-Val-Ile-Thr-Asp-Leu-Asp-Thr-Tyr-Val-Gln-Ser, and the Km value of the exoglucanase is 0.0029 mM.
Patent KR-20030027370-A (KR)
Inventor: CHOI BONG JUN
IPC: F25D21/14
Filed: 2001-09-28
Abstract: PURPOSE: A defroster for a refrigerator is provided to improve cooling efficiency by preventing increase of temperature in a compartment during defrosting operation. CONSTITUTION: A defroster includes a reservoir(21) storing water of normal temperature; an opening and closing valve(23) selectively supplying water in the reservoir to an upper end of an evaporator(5); a water collecting bowl(24) collecting water thawing on the evaporator; a circulation pipe(27) connecting the water collecting bowl and the reservoir; and a circulation pump(28) pumping water in the water collecting bowl to the reservoir so as to remove frost formed on the evaporator with water.
Patent KR-20030030138-A (KR)
Title: Tread rubber composition with silica improved processibility and dispersibility
Inventor: CHOI HUI SEONG
IPC: C08L9/06
Filed: 2001-10-08
Abstract: PURPOSE: Provided is a silica thread rubber composition added with a dispersant and accelerator to enhance dispersion and processability. Processability is increased due to decrease in viscosity and dispersion is enhanced due to higher tensile property and abrasion characteristics than those of other rubber composition. CONSTITUTION: The composition comprises: 100 phr mixed raw rubber composed of 70-90 phr of styrene butadiene rubber and 10-30 phr of butadiene rubber; 3-5 phr zinc soap dispersant of C16-20 fatty acid derivatives with mol. wt. of 2500-3500; and 2-5 phr polyethylene glycol accelerator with mol. wt. of 4000-6000.
Patent KR-20030030390-A (KR)
Title: Oscillator guiding equipment by using round type plate spring
Inventor: KANG GI PAN
IPC: B22D11/053
Filed: 2001-10-10
Abstract: PURPOSE: Provided is a vibration guide equipment using a rounded sheet spring which prevents a mold from being vibrated in all directions when the mold is vibrated vertically to reduce errors in assembly so that it contributes to raise product quality. CONSTITUTION: In a molding vibrator which vibrates a vibration frame(3) vertically by a hydraulic cylinder(5) for continuous molding, the vibration guide equipment using the rounded sheet spring comprises the parts of: a pair of support blocks which are fixed at the vibration frame and a fixed frame(4) to support the vibration frame; a fixing pin which connects the support blocks; and a pair of sheet springs(14,16) which are fixed at the fixing pin to connect the support block in the neighborhood of the vibration frame at one edge and fixed at the fixing pin to connect the support block in the neighborhood of the fixed frame at the other edge.
Patent KR-20030031805-A (KR)
Title: Method to manufacture mesh membrane for implant operation
Inventor: JUNG SEONG MIN
IPC: A61C8/00
Filed: 2001-10-16
Abstract: PURPOSE: A manufacturing method of mash membrane for implant is provided to conduct implant of which contour is tidy without burr. CONSTITUTION: The manufacturing method of mash membrane for implant comprises a step for placing a titanium plate on a die wherein, the die is made of aluminum plate, a step for clamping the aluminum die and the titanium plate closely by using a fixing jig, a step for drilling a hole using an end mill so that the titanium plate and the aluminum die are cut simultaneously, and a step for cutting a workpiece right and left and then up and down to make its contour in turns. The end mill is programmed to make a workpiece as a desired shape.
Patent KR-20030042155-A (KR)
Title: Apparatus for fixing a specimen
Inventor: JUNG EUN GYEONG
IPC: H01L21/68
Filed: 2001-11-21
Abstract: PURPOSE: An apparatus for fixing a specimen is provided to eliminate the need to separate a completed specimen from the specimen fixing apparatus by using the specimen fixing apparatus in a specimen supporting unit of a transmission electron microscope(TEM) such that the specimen fixing apparatus fixes the specimen to a holder of an ion milling apparatus for ultimately fabricating the specimen. CONSTITUTION: A clamp(200) holds the circumferential portion of a test specimen(900). A supporting unit supports the clamp, connected to a side of the clamp. A fixing unit is connected to the supporting unit so as to be located under the specimen, having a cylindrical shape that can pass the electron beam of the TEM. The fixing unit is fixed in the holder of the ion milling apparatus and in the specimen supporting unit of the TEM for analyzing the specimen.
Patent KR-20020046961-A (KR)
Inventor: KUGAI HIROKAZU
IPC: H01M10/0562
Filed: 2001-12-11
Abstract: PURPOSE: To provide a method capable of manufacturing an inorganic solid electrolyte thin membrane with relatively high ion conductivity. CONSTITUTION: Thin membrane 2 formed of an inorganic solid electrolyte is formed on a heated base material 1 by vapor-phase growth method. This provides the thin membrane with higher ion conductivity than if a thin membrane is formed on an unheated base material. After the thin membrane formed of the inorganic solid electrolyte is formed on the base material 1 held at room temperature or below 40°C, the thin membrane 2 formed of the inorganic solid electrolyte is heated to increase its ion conductivity.
Patent KR-20020051846-A (KR)
Inventor: ARAKAWA OSAMU
IPC: G01R31/26
Filed: 2001-12-20
Abstract: PURPOSE: An advantageous carrier positional displacement detecting mechanism without taking time for detecting the position is provided. CONSTITUTION: The carrier positional displacement detecting mechanism comprises a carrier(4) for mounting an IC thereon, and a measuring part(2) for measuring the IC mounted on the carrier(4), the carrier(4) having a positioning hole(4a), and a measuring part(2) having a projection(11) wherein the projection(11) is inserted into the positioning hole(4a) so as to position the carrier(4) relative to the measuring part(2), and wherein the carrier positional displacement detecting mechanism comprises positional displacement time contact means(8) projected from and disposed on each tip end of the projection(11) and capable of passing through the positioning hole(4a) only when the projection(11) and the positioning hole(4a) correspond to each other, and contact detection means(9) for detecting the contact between the positional displacement time contact means(8) and the carrier(4) and outputting a carrier positional displacement signal.
Patent KR-20030052603-A (KR)
Title: Body mounting and Seat mounting combined using Structure
Inventor: KIM GWANG SEOP
IPC: B62D24/02
Filed: 2001-12-21
Abstract: PURPOSE: A combined structure of a body mounting and a seat mounting is provided to reduce weight by dispersing weight with a frame and the vehicle body in deformation of a vehicle body, to improve freedom of design by controlling increase of a sectional size of floor members and to reduce the number of components by reducing or removing sizes of a side member and a cross member. CONSTITUTION: A fourth mounting portion is moved to a seat mounting portion to operate a seating mounting(14) and a body mounting at the same time. An upper rubber(17) is inserted to a boss(15) and fixed to a bottom of a cross member(7). The seating mounting is operated to the cross member. A lower rubber(16) is inserted to a bottom of the boss not to contact a chassis frame(13) directly and fixed to the inside of the boss with a bolt(19) and a nut together with the upper rubber. Thereby, transmission of noise and vibration is reduced by reducing the number of body mountings. The frame constrains a movement of the vehicle body in collision.
Patent KR-20030052655-A (KR)
Inventor: BAEK HYEONG GIL
IPC: H01L23/12
Filed: 2001-12-21
Abstract: PURPOSE: A solder paste wafer level package and a method for manufacturing the same are provided to be capable of improving solder joint reliability and forming a rearrangement circuit line using a simple process. CONSTITUTION: A chip pad is formed at an active surface of a semiconductor chip(110). The first insulating layer(114) is formed on the active surface of the semiconductor chip for exposing the chip pad. A rearrangement circuit line(116) made of solder is formed at the first insulating layer. At this time, one end of the circuit line is electrically connected with the chip pad. The second insulating layer(118) is formed on the first insulating layer for protecting the circuit line and exposing the other end of the circuit line. A solder ball(120) is electrically connected through the second insulating layer to the exposed portion of the circuit line.
Patent KR-20020070773-A (KR)
Inventor: AOKI HIROSHI
IPC: H04N5/335
Filed: 2001-12-24
Abstract: PURPOSE: A semiconductor device, a semiconductor device for photographing and a method for making the same are provided to achieve a thin and smaller packaged semiconductor device. CONSTITUTION: A semiconductor device includes a resin housing(14A) provided with a functional part, a wire pattern(12A) made of a conductive material and molded in the resin housing, a part of the wire pattern being exposed from the resin housing, an electronic part(9) connected with the wire pattern in a state where the electronic part is molded in the resin housing, and a semiconductor element connected to the part of the wire pattern exposed from the resin housing, wherein the semiconductor element provides a designated function in cooperation with a functional part of the resin housing.
Patent KR-20030055716-A (KR)
Title: method and recorded media for union key management using IPsec
Inventor: NA JAE HUN
IPC: H04L9/08
Filed: 2001-12-27
Abstract: PURPOSE: An integrative key management method using an IPsec and a recording medium for the same are provided, which manage key information and security connection in an IP layer and are achieved and operated independently. CONSTITUTION: According to the key management method of IPsec communication, an encryption and authentication key is negotiated manually with a system GUI as to other security area in an application layer or is negotiated automatically by interlocking to an automatic key management server(30). A message is formed according to a key socket protocol defining the encryption and authentication key information according to a key socket protocol, and the information is analyzed in a kernel level and is stored in a kernel as security connection database. An inquiry and management as to the security connection database is performed using a virtual file system as to the security connection database stored in the kernel. Then, IPsec communication is performed by referring to the security connection database stored in the kernel level when a packet is transmitted or received from an IPsec engine(40).
Patent KR-20010072271-A (KR)
IPC: A47K3/16
Filed: 1999-08-10
Abstract: A device consisting of a combination of a bathtub (1) with a shower tray (3), in which the bathtub (1), when in position B=Bathing, is positioned over shower tray (3) in such a way that its water outlet ends up over the shower tray (3), whilst when in the other possible position S=Showering, it stands upright, i.e. end over end, on one of its ends, thereby freeing access to shower tray (3). Bathtub (1) can easily be manoeuvred from one position to the other by a lifting mechanism and the application of force, preferably generated by an electric motor (13). By completely separating the bathtub from the shower tray and by positioning the bathtub over the shower tray, the edge of the shower tray is on the one hand kept as low as it would be if there were indeed a separate shower tray, whilst on the other hand, the edge of the bathtub is only slightly raised. As a result, both parts are extremely user-friendly, especially for elderly or handicapped persons. The device does not require any more space than a conventional bathtub alone whilst also providing an additional full shower facility in the same space.
Patent KR-20010072461-A (KR)
IPC: G06K7/08
Filed: 1999-08-12
Abstract: A grid-shaped array of conductor areas is used for capacitive image acquisition. Shielding conductors are disposed in each case between the conductors that are provided for measurement. During a plurality of charging and discharging cycles, the potential is always carried along on the conductors belonging to a respective pixel in order to prevent displacement currents between the shielding capacitors. By way of example, a compensation line with a feedback operational amplifier can be used for identically altering the electrical potentials on the conductors.
Patent KR-20010085907-A (KR)
IPC: G02B27/01
Filed: 1999-11-29
Abstract: 한쌍의 유리기판(1202) 사이에 액정과 고분자 전구체를 혼합한 광학매체를 배치하고, 예컨대 50℃ ~ 70℃ 정도로 가열한 상태로 예컨대 Ar레이저에 의해 515㎚ 정도의 파장의 레이저 광을 이용한 간섭고에 의해 5분간 정도 노광한다. 노광이 개시되면(제1단계) 고분자 전구체의 경화가 시작되고, 도 10(a)에 나타내는 바와 같이, 주기적인 배치의 고분자 기둥(1203)이 형성된다. 또한 노광이 계속되면(제2단계) 도 10(b)에 나타내는 바와 같이, 어두운 부분에 모인 액정분자가, 경화한 고분자 기둥(1203)의 벽면에 대해서 수직인 방향으로 거시적으로 같이 배향하도록 된다. 이와 같이 하여 형성된 회절광학소자는, 높은 편광선택성과 회절효율을 나타내고, 이것을 이용함으로써, 밝고 고콘트라스트 화상을 표시할 수 있는 편광조명장치나 화상표시장치 등을 구성할 수 있다.
Patent KR-20010102408-A (KR)
Title: Sealed individual electric switch fixed by being interlocked on a circuit board
IPC: H01H13/04
Filed: 2000-12-22
Abstract: An electrical switch mounted on a circuit board and providing tactile feedback includes a domed tripper (18) and an elastomeric actuator (16) with a rod having an upper operating end (78) that can be depressed to snap down the tripper and close the switch. The actuator has a lower sealing lip (62) extending in a 360° circle around the tripper and lying against the circuit board upper face, to form a sealed cavity (56) containing the tripper. The 360° sealing lip of the actuator is pressed down against the circuit board by a cap (14) that has a side wall (26) with a lower edge (38) pressing down against the sealing lip. The cap has feet (42) extending down through holes in the circuit board, the feet having latches (48) that hold the cap in place.
Patent KR-20010102451-A (KR)
IPC: H01G13/00
Filed: 2000-03-31
Abstract: 본 발명은 세라믹 커패시터의 제조시 다중층 필름을 지지 필름으로 사용하는 방법에 관한 것인데, 여기서 다중층 필름은 기저층 및 적어도 하나의 최상층 A를 가지며, 최상층 A는 프로필렌 중합체 및 적어도 하나의 불화합성 폴리올레핀을 포함하고, 불화합성 폴리올레핀은 LDPE, HDPE, MDPE, 에틸렌-프로필렌 공중합체이거나 시클로 올레핀 또는 규칙배열(syndiotactic) 중합체이며, 최상층 A의 표면은 필름의 반대편 표면보다 더 큰 거칠기를 가지고, 필름에는 필름의 보다 매끄러운 표면에 세라믹 코팅이 제공되며, 이 코팅은 건조되고 이어서 지지 필름으로부터 분리된다.
Patent KR-20010111272-A (KR)
IPC: D06M15/59
Filed: 2000-03-09
Abstract: 폴리아미드-아믹산 및 트리아민의 조합물로 형성되는 제품의 수용액을 함유하는 수계 조성물, 바람직하게는 폴리아미드-아믹산이 트리멜리트산 할라이드 또는 그의 대등물 및 4,4'-메틸렌디아닐린을 포함하는 방향족 디아민으로부터 제조되는 조성물.
Patent KR-20010113759-A (KR)
IPC: G09G3/20
Filed: 2000-12-22
Abstract: 텍스트의 개선 방법에서, 이미지 텍스트는 검출되며(SW, Det), 이미지는 라인당 다수의 제 1 픽셀들과 이미지의 이미지당 다수의 제 1 라인들을, 이미지가 디스플레이될 디스플레이(D)에 적합하는, 라인당 다수의 제 2 픽셀들과 이미지당 다수의 제 2 라인들에 부합하도록 스케일링되며(Scal), 이미지는 텍스트 검출 단계의 결과에 따라 이미지를 처리한다(Post-proc).
Patent KR-20020022668-A (KR)
IPC: C08G18/08
Filed: 2000-05-19
Abstract: 본 발명은 용융되거나 액체 상태의 분산 상 스트림을 기계적 분산기 속에서 용융되거나 액체 상태의  연속 상 스트림과 혼합하여 분산액 또는 유액을 형성함으로써 제조될 수 있는 안정한 수성 분산액 또는 유액에 관한 것이다.  용융되거나 액체 상태의 분산 상 스트림은 바람직하게 실온에서는 고체이지만, 다소 고온에서는 용융되는 중합체를 함유한다.  당해 중합체는 용융 압출 또는 복합 압출을 포함하는 압출 공정과 같은 연속 반응 방법에 의해 용융된 상태로 형성되거나, 형성된 후  용융된다.  다분산성이 낮은, 서브마이크론 크기의 분산액이 본 발명의 방법에 의해 제조될 수 있다는 것이 밝혀졌다.
Patent KR-20020026170-A (KR)
IPC: F28D15/02
Filed: 2001-03-30
Abstract: 본 발명은 열에네지를 기계 운동으로 전환하기 위한 방법 및 장치에 관한 것으로서, 상기 장치(200)는 가열원(236) 위의 굴대(204)상에 장착된 프레임(202)을 포함하며, 유체 도관(226, 227, 228, 229)에 의해 연결된 적어도 3개의 긴 챔버(206, 209, 212, 215)를 포함하는 유량 회로(220)는 프레임상에 장착되어 있으며, 일방향 밸브(240, 242)가 상기 유량 회로내의 일방향 유체 흐름을 허용하기 위해 유량 회로내에 제공되며, 가열원은 가열된 챔버내의 증기압을 증가시키기 위해 챔버내의 작동 유체를 그의 끓는점 이상으로 가열하며, 이에 의해 유량 회로내의 챔버로부터 바로 하류의 챔버로 유체를 밀어내며, 하류 챔버의 증가된 중량은 상류 방향으로 프레임을 회전시키는 굴대에 대한 토크를 증가시키는 것을 특징으로 한다.
Patent KR-20020015340-A (KR)
IPC: H01H3/00
Filed: 2000-07-14
Abstract: 본 발명에 따른 계전기는 회전축선(35)을 중심으로 피봇가능하도록 장착되는 접극자(34)를 구비한 전자기계(electromagnetic system; 31, 32)를 포함하여 이루어진다. 상기 접극자는 회전축선의 한 쪽에 작동에어갭(37)을 형성하는 긴 접극자암(38)과, 회전축선의 타측에 비교적 짧은 작동암(39)을 구비한다. 상기 접극자는, 상기 작동암(39)을 통하여, 접점스프링(10)과 유극이 있게 맞물림으로써, 단계적 감속 효과에 의하여 상기 접극자의 운동이 접점스프링에 전달된다. 이것은 마이크로용접 후의 상기 접점의 동적인 개방(dynamic opening)을 제공한다. 본 발명은 절환소음을 방지하거나 줄이기 위하여, 비교적 큰 각도의 접극자운동에 부가하여 비교적 느린 접극자운동을 갖는 계전기에 대하여 특히 장점이 있는 방식으로 사용될 수 있다.
Patent KR-20020015048-A (KR)
IPC: H01L29/792
Filed: 2000-06-09
Abstract: 높은 유전상수 절연체는 텅스텐-브론즈형 옥사이드, 파이로클로르형(pyrochlore-type) 옥사이드, 및 Bi 2 O 3 와 페로브스키트 및 파이로클로르형 옥사이드으로 이루어진 그룹으로부터 선택된 옥사이드의 조합으로 이루어진 그룹으로부터 선택된 금속 옥사이드의 박막을 포함한다. 실시예는 일반적인 화학양론식 AB 2 O 6 , A 2 B 2 O 7 및 A 2 Bi 2 B 2 O 10 으로 표현되는 금속 옥사이드를 포함하며, 여기서 A는 Ba, Bi, Sr, Pb, Ca, K, Na 및 La를 포함하는 금속들의 그룹으로부터 선택된 A-사이트 원자를 나타내며; B는 Ti, Zr, Ta, Hf, Mo, W 및 Nb를 포함하는 금속들의 그룹으로부터 선택된 B-사이트 원자들을 나타낸다. 바람직하게는, 금속 옥사이드들은 (Ba x Sr 1-x )(Ta y Nb 1-y ) 2 O 6 이고, 0≤x≤1.0 및 0≤y≤1.0; (Ba x Sr 1-x )(Ta y Nb 1-y ) 2 O 7 이고, 0≤x≤1.0 및 0≤y≤1.0; 및 (Ba x Sr 1-x ) 2 Bi 2 (Ta y Nb 1-y ) 2 O 10 이고, 0≤x≤1.0 및 0≤y≤1.0이다. 발명에 따라 박막들은 상대적인 유전상수≥40이며, 바람직하세는 약 100이다. 발명의 금속 옥사이드들에서 Vcc 값은 제로에 가깝다. Tcc 값은 <1000ppm이며, 바람직하게는 <100이다.
Patent KR-20030060496-A (KR)
Title: nozzle and the manufacturing method of it
Inventor: PARK BYOUNG EOK
IPC: B05B1/02
Filed: 2002-01-09
Abstract: PURPOSE: Provided is a spray nozzle which forms a spray hole at a nozzle head in a spiral direction so that it assists to make a spray agent mist effectively, with simplifying the entire structure. CONSTITUTION: The spray nozzle is characterized by comprising the parts of: plural nozzle holes(6) which are formed at edge of a nozzle head(4) and connected to a channel(2); a heating device(8) which heats the edge of the nozzle head under melting temperature; and a producer(10) which is combined with the edge of the nozzle head to twist the edge of the nozzle head in a spiral way, with forming the straight nozzle hole by drilling processing or laser processing.
Patent KR-20030061253-A (KR)
Title: System and Method for the settlement service using Bluetooth device
Inventor: LEE MIN SOO
Filed: 2002-01-11
Abstract: PURPOSE: A system for a payment service using a bluetooth device and a method thereof are provided to enable a purchaser, who possesses a mobile communication device having a bluetooth device, to purchase a commodity and a service promptly while executing a payment at on/off-line store. CONSTITUTION: A web server(500) is connected to a communication network(100) such as the Internet, sells a commodity and a service, and executes a payment request function. A purchaser possesses a mobile communication device(400) including a bluetooth device(480). A purchaser PC(300) including a bluetooth device(380) is connected to the communication network(100). A payment server(600) in a financial institution is connected to the communication network(100) and executes a payment approval. A main server(200) in a payment service is connected to the communication network(100), receives information of the purchaser, joins the purchaser as a member, executes a bluetooth device and purchaser authentication service, and executes a payment service. The main server(200) receives payment request information of the purchaser from the web server(500), authenticates the bluetooth device of the purchaser and the purchaser through the PC(300), and receives a payment approval from the payment server(600). In addition, the payment approval information is transmitted to the main server(200), the purchaser, and the web server(500) interactively.
Patent KR-20030075807-A (KR)
Title: Novel Bicyclic Sesterterpene Derivatives and Pharmaceutical Compositions Comprising the Same
Inventor: JUNG HYE JIN
IPC: C07C39/18
Filed: 2002-03-20
Abstract: PURPOSE: A novel bicyclic sesterterpene-based derivative and a pharmaceutical composition containing the derivative are provided, to obtain a pharmaceutical composition for treating or preventing the uncontrolled angiogenesis related disease. CONSTITUTION: The bicyclic sesterterpene-based derivative is represented by the formula 1, wherein R1, R2 and R3 are independently H, a linear or branched alkyl group, a linear or branched alkenyl group, a linear or branched alkynyl group, a cycloalkyl group, a cycloalkenyl group, an aryl group, an alkaryl group or an aralkyl group. Preferably R1, R2 and R3 are independently H or a methyl group in the formula 1. The pharmaceutical composition comprises the bicyclic sesterterpene-based derivative of the formula 1, and a pharmaceutically acceptable carrier.
Patent KR-20030086708-A (KR)
Title: A ceiling vibroisolating device for decreasing a crashing sound of the floor
Inventor: JU TAE SEONG
IPC: E04B1/98
Filed: 2002-05-06
Abstract: PURPOSE: A ceiling vibroisolating device is provided to reduce a floor impact sound effectively using Neoprene rubber. CONSTITUTION: The ceiling vibroisolating device(10) for reducing a floor impact sound comprises a main body(11) made of Neoprene rubber and a steel frame(12). Wherein a center hole(13), which makes a fixture such as a nail pass through to fix the ceiling vibroisolating device(10) on a wooden ceiling frame(15), and two right and left holes(14), which make a fixture such as a nail pass through to fix the ceiling vibroisolating device(10) on a slab while coupling the ceiling vibroisolating device(10) with a wooden ceiling frame(15), are formed on an upper frame of the main body(11), and the steel frame(12) reinforces not to make the rubber of the ceiling vibroisolating device(10) torn when fixing using a nail and is installed between the slab and the wooden ceiling frame(15) to keep an interval between the slab and the wooden ceiling frame(15).